Influence of Oxygen Mobility over Supported Pt Catalysts on Combustion Temperature of Coke Generated in Propane Dehydrogenation

Autor:	Bao Khanh Vu, Eun Woo Shin
Rok vydání:	2010
Předmět:	Chemistry Inorganic chemistry chemistry.chemical_element General Chemistry Coke Combustion Heterogeneous catalysis Oxygen Catalysis chemistry.chemical_compound Propane Dehydrogenation Platinum
Zdroj:	Catalysis Letters. 141:699-704
ISSN:	1572-879X 1011-372X
DOI:	10.1007/s10562-010-0527-5
Popis:	Five supported Pt catalysts (Pt/SBA-15, Pt/Al2O3, Pt/MgO, Pt/CeO2, and Pt/Ce0.63Zr0.37O2 ) were prepared to systematically investigate the influence of oxygen mobility over the support on combustion temperatures of coke produced in propane dehydrogenation. A strong correlation between the oxygen mobility of the supports and the combustion temperature of the coke was observed. The coke combustion temperatures increased following the reverse order of oxygen mobility of the supports: CeZrO2 > CeO2 > MgO > Al2O3 > SBA-15, implying that the oxygen transfer over supports was a rate-determining step in the coke combustion process. [Coke combustion was performed in a TGA instrument under air flow with a heating rate of 5 °C/min. The support with higher oxygen mobility resulted in a lower coke combustion temperature.]
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1289cb7ebb821dc731e794e668b1cb4b https://doi.org/10.1007/s10562-010-0527-5 Zobrazit plný text záznamu Full text from SpringerLink